Liquid agitating means



LIQUID AGITATING MEANS Aiag. 28, 1934. w. H. LUSH 1,971,987

4 Filed June 1. 195?.

Patented Aug. 28, 1934 UNITED STATES PATENT OFFICE LIQUID AGITATING MEANS Application June 1, 1932, Serial No. 614,830

1 Claim.

The invention relates generally to means for agitating liquids and primarily has for its object to provide a novel apparatus for utilizing an expanding gas as the agitating medium.

Another object of the invention is to provide novel means for distributing and controlling the pressure of the agitating gas.

Another object of the invention is to provide means for controlling the temperature of the agitating gas.

With these and other objects in view which will more fully appear, the nature of the invention will be more clearly understood by following the description, the appended claim, and the several views illustrated in the accompanying drawing.

In the drawing:-

Figure 1 is a somewhat diagrammatic perspective view illustrating the invention in use, parts being bro-ken away and in section.

Figure 2 is a detail perspective view illustrating the removable heater unit.

In the drawing in which like numerals of reference indicate like parts in all of the figures, 5 designates a tank or other receptacle in which is contained the liquid to be agitated. The liquid is designated 6 and may be syrup or any other liquid susceptible of being agitated by the introduction of gas under pressure. The agitating apparatus includes an agitating gas source or tank 7 which delivers the gas under pressure through the valve controlled outlet 8 into the master conduit 9. I find carbonic gas suitable for the agitating purpose described herein.

Supported upon the tank or receptacle 5 by means of a bracket 10, or other suitable mounting devices, is a heater shell or housing 11 preferably heat insulated as at 12. In the upper end of the shell 11 is mounted a pressure control valve generally designated 13 and which may be of any conventional form capable of accomplishing the desired function of regulating the pressure of the agitating gas flowing from the master conduit 9.

The valve 13 is provided with an inlet 18 which is connected at 19 to the master conduit 9, and with an outlet 20 which is connected with a coil 23 forming a continuation of the master conduit and disposed vertically within the heater shell 11. The valve 13 also includes a connection 26 with a pressure gage 27 by which it is possible to determine the pressure of the gas as regulated by said valve. Conventional pressure control valves usually employ pressure controlling devices including a variable spring resistance. This type of control valve is well known and a detailed illustration thereof is deemed unnecessary. In this disclosure, the spring regulating stem is generally indicated at 28.

The outlet 31 of the coil 23 is extended through the wall of the housing or shell 11 and is connected as at 32 with the discharge pipe 33, the discharge end or nozzle 34. of which is adapted to be immersed in the liquid to be agitated as illustrated in Figure 1 of the drawing.

A heater unit 35 is removably supported as at 36 in a bottom cap 37 adapted to fit over and close the lower end of the shell 11 and be secured in position by screws or other securing means 38. The removable heater unit, shown in detail in Figure 2 of the drawing, preferably is of the electrical resistance type and includes thermostatically actuated make and break contacts 39, a manually operated control switch 40, and a plug-in connection generally designated 41.

By reason of the provision of the heater unit 85 mounted as shown in Figure 1 of the drawing, a a uniform temperature is maintained within the housing or shell 11 and the gas passing through the coil 23 is suitably heated thereby preventing freezing of the gas, coil, and other parts of the mechanism.

It is of course to be understood that the details of structure and arrangement of parts may be variously changed and modified without departing from the spirit and scope of my invention.

I claim:

In means for agitating liquids in tanks, the combination of a source of gas under pressure, a portable heat insulated housing mountable in and removable from associated relation with said tanks, a conduit for conducting gas from the source to the liquid to be agitated and having a discharge end readily insertable in and removable from an immersed condition in the liquid, said conduit including a portion coiled about in the housing, a pressure regulating valve in said conduit and supported by said housing, and a thermostatically controlled heat unit carried by said housing and serving to maintain a uniform temperature within said housing.

WILFRED H. LUSH. 

